The annual population estimates of 1st January are consistent with the definitions of the UN for the evaluation of population, based on the concept of usual residence. According to this definition in the total resident population are included all those people who lives or are indented to live in the country at least 12 months, regardless their citizenship. The resident population is disaggregated by age, sex and prefectures. Annual average of total population: is the number of inhabitants in a given zone, in the mi…